package shuzu;

/**
 * 打印1 3 5 ... 21
 */
public class Zuoye2_29_1 {
    public static void main(String[] args) {
        for (int i = 1; i <= 21; i++) {
            if (i % 2 != 0) {

            }
            System.out.println(i);
        }
    }
}
